Total reported releases
Total reported releases at Hf Sinclair Puget Sound Refining LLC have risen 58% since 2010 (through 2024).
TRI facility · TRI 2024 reporting year
Hf Sinclair Puget Sound Refining LLC
Total reported releases 240k lb fell modestly year over year (-9%). Total releases concentrations are up 58% since 2010.
8505 SOUTH TEXAS RD, Anacortes, Washington · 324110 · Petroleum · operated by Hf Sinclair CORP
Anomaly engine
Notable Signals
Diethanolamine
Diethanolamine releases at Hf Sinclair Puget Sound Refining LLC rose from 38k lb to 74k lb between 2023 and 2024.
Chemicals reported · most recent year
What This Facility Releases
Diethanolamine
Diethanolamine concentrations have more than doubled since 2010.
Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Nitrate compounds (water dissociable; reportable only when in aqueous solution) concentrations have fallen 46% since 2023.
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) concentrations have fallen 34% since 2010.
Xylene (mixed isomers)
Xylene (mixed isomers) concentrations are up 40% since 2010.
Ammonia
Ammonia concentrations have more than halved since 2010.
n-Hexane
n-Hexane concentrations are up 26% since 2010.
Hydrogen sulfide
Hydrogen sulfide concentrations have more than halved since 2012.
Toluene
Toluene concentrations are roughly unchanged from 2010.
Equity context · ACS 2018-2022 block-group demographics
Who Lives Next To This Facility
Within 3 miles of this facility (7 Census block groups, population-weighted demographics): a population of 7,714. Why we surface this →
22.9%
Low-income
20.5%
People of color
4.5%
Under age 5
26.3%
Over age 64
Source: Census ACS 2018-2022 block-group demographics, population-weighted across the 3-mile buffer around this facility (from USEPA-clone/EJAM-open blockgroupstats). Indicator-level percentile and EJ-disparity scores are surfaced on the county page and the state page — they describe wider regional exposure burdens, not effects attributable to a single facility.
Source. EPA Toxics Release Inventory · retrieved 2026-05-07. Reporting year 2024. TRI is a federal public-domain dataset under 17 USC §105.
What this is not. TRI quantifies releases reported by the facility under EPCRA §313 — not ambient air or water concentrations measured at receptors. We do not attribute individual health outcomes to specific facilities; that exceeds what the data can support.